Research Article
Predicting Tooth Surface Loss Using Genetic Algorithms-Optimized Artificial Neural Networks
Table 3
Independent variable importance as calculated by SPSS neural networks module.
| Independent variable importance | ā | Importance (or weight in the ANN) | Normalized importance |
| Age | 0.160 | 100.0% | Smoker status | 0.029 | 18.0% | Type of brush | 0.074 | 46.2% | Frequency of brushing/month | 0.105 | 65.5% | Frequency of bruxism/month | 0.027 | 16.7% | Frequency of oranges eating/month | 0.127 | 79.1% | Frequency of apples eating/month | 0.078 | 48.7% | Frequency of lemon eating/month | 0.073 | 45.8% | Frequency of pickle eating/month | 0.136 | 84.8% | Minutes of seeds eating/month | 0.075 | 46.7% | Frequency of fizzy drinks/month | 0.118 | 73.8% |
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